I'm brand new to this forum, and I'm happy to be here and participate.
I'm working on a Tubes4Hifi SP14 preamplifier build.
I ordered the upgraded Eizz gain controls from Roy. The diamater of Eizz attenuators threaded shaft behind the selector shaft is too wide for it to pass through the left and right gain holes machined into the front chassis face panel. Am I missing something? I would hate to drill right into this face plate to make this work. But I'm happy to do it if that's what's required.
I’m curious as to a solution. Any advice/expertise will be appreciated!